Electronics Forum: electrival and verifying (Page 1 of 6)

Tp9 and Tp9 ufp

Electronics Forum | Thu Oct 27 20:37:49 EDT 2011 | tech1

the calibration error sounds like it is an electrical verifier issue. Are you testing parts before you place them? It could be that your centering electrodes are worn or dirty, or it could be the ribbon cables from the centering unit. If you are usin

NADCAP and thermocouple calibration

Electronics Forum | Wed Aug 07 12:35:36 EDT 2013 | cyber_wolf

I was asked how we verify that the thermocouples INSIDE the reflow oven are calibrated. That seems pretty impractical to me. Has anyone come across this ?

Touch-up and Inspection Process

Electronics Forum | Wed Mar 02 18:46:02 EST 2005 | Austinj

The tendancy always has been "when in doubt, touch it up"... this is not the way to "verify the process" and is not the best strategy for multiple reasons (unessecary rework, additional labor costs, as well as making the solder joint more brittle, [i

NADCAP and thermocouple calibration

Electronics Forum | Thu Aug 08 13:09:38 EDT 2013 | cyber_wolf

Hege, there is no actual calibration of the thermocouple itself. You can however verify that they read correctly. Heller sells an option on their reflow ovens specifically for this purpose. I hoping that someone chimes in here that is NADCAP certifi

AOI, Quality and SPC

Electronics Forum | Tue Mar 04 16:02:53 EST 2003 | Dave C.

We have auto-correct funtion on our Panasonic Create CM-301 placement machines but have never turned it on because of a perceived loss of placement time when the camera verifies placement. We look at the first article and correct placemnt if needed.

NADCAP and thermocouple calibration

Electronics Forum | Wed Aug 07 16:49:15 EDT 2013 | hegemon

You mean you don't pull all of your thermocouples out of the ovens once a year and send them out for calibration? - lol Tough question. You have a calibrated datalogger. (I assume) You have an oven with preset zone temps, each zone controlled by a

AOI, Quality and SPC

Electronics Forum | Tue Mar 04 17:27:07 EST 2003 | msivigny

Hello Dave, I can understand why you might not use the auto-correct function based on the time it takes to perform the operation. I question why there is an auto-correct function in the first place? If I understand the way this works correctly, the m

Re: IQ/OQ, and PQ

Electronics Forum | Wed Sep 15 11:08:45 EDT 1999 | Dave F

| I am looking for help on doing smt equipment qualifications. I need to find some examples to follow. The equipment to be qualified is a Stencil Machine, Pick and place machine, and Reflow oven. We manufacture medical devices so it has to be somewha

SPC and Wave

Electronics Forum | Thu Jul 14 16:05:55 EDT 2005 | russ

Good answer slthomas! This has got to be the biggest misconception out there. To perform SPC on a wave process you must first perfrom DOE to determine the critical parameters and or control limits. For example you will need temp reading devices tha

Machine profiling and product profiling

Electronics Forum | Fri Jan 24 16:57:39 EST 2003 | MA/NY DDave

Hi, I will give just one of the couple of ways I have seen. Once a particular product is debugged, verified through the process the profile of the Oven and it's settings are stored on a separate PC. Prior to running that product and at the start of

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